C230 Kompressor transmission

I have been very satisfied to my C230 otherewise, just automatic transmission is not woking that fast than I would like to. I don't even know whether it is transmission or because of kompressor, but especially when
accelerating fast and transmission shifts to the lower gear, delay between pressing the pedal and when power actually kicks in is bit too long. I compalined that in the srvice and they said that that's how it works, nothing they can do. I even complained to MBUSA, since this 'feature' doesn't make me feel that the car is 'sport' sedan...
Anyone have similar experiences and any clue which might cause this delay?

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